U+1D47 "ᵇ" Modifier Letter Small B Unicode Character
Unicode Version 17.0
ᵇ
U+1D47 "ᵇ" Modifier Letter Small B is a superscript or raised lowercase "b" glyph used primarily in phonetic transcription and linguistics, particularly within the International Phonetic Alphabet, to indicate a secondary articulation, such as a prenasalized consonant or a release feature. It also appears in some orthographies and specialized textual contexts as a modifier to show slight phonetic variation or a reduced form of the letter. Categorized under the "Spacing Modifier Letters" block, this character is not designed for standard spelling but rather to provide diacritic-like clarity to written sounds.
General Properties
| Code Point | U+1D47 |
| Version Added | 4.0 |
| Name | Modifier Letter Small B |
| Block | Phonetic Extensions |
| General Category | Modifier Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
| Decomposition Type | Super |
| Decomposition Mapping | "b" U+0062 Latin Small Letter B |
Encodings
| HTML Decimal Encoding | ᵇ |
| HTML Hex Encoding | ᵇ |
| UTF-8 Encoding | 0xE1 0xB5 0x87 |
| UTF-16 Encoding | 0x1D47 |
| UTF-32 Encoding | 0x00001D47 |
| C/C++/Java Escape | \u1d47 |
Unicode Properties
| NFC Quick Check | Yes |
| NFD Quick Check | Yes |
| Numeric Type | None |
| Numeric Value | NaN |
| Line Break | Alphabetic |
| Lowercase | Yes |
| Other Lowercase | Yes |
| Case Ignorable | Yes |
| Cased | Yes |
| Changes When NFKC Casefolded | Yes |
| NFKC Casefold | "b" U+0062 Latin Small Letter B |
| NFKC Simple Casefold | "b" U+0062 Latin Small Letter B |
| Script | Latin |
| Script Extensions | Latin |
| Indic Syllabic Category | Other |
| ID Start | Yes |
| XID Start | Yes |
| ID Continue | Yes |
| XID Continue | Yes |
| Diacritic | Yes |
| Alphabetic | Yes |
| Vertical Orientation | Rotated |
| Grapheme Base | Yes |
| Grapheme Cluster Break | Other |
| Word Break | Alphabetic letter |
| Sentence Break | Lower |